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Finding the Fourth Proportional to 93,672,447.60, 140,508,671.40 and 84,130,129.20

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Solution

The fourth proportional to 93,672,447.60, 140,508,671.40 and 84,130,129.20 is: 126,195,193.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,672,447.60 : 140,508,671.40 = 84,130,129.20 : x
  2. Step 2: Convert to fraction form
    93,672,447.60/140,508,671.40 = 84,130,129.20/x
  3. Step 3: Cross multiply
    93,672,447.60x = 140,508,671.40 × 84,130,129.20
  4. Step 4: Simplify right side
    93,672,447.60x = 11,821,012,678,602,346
  5. Step 5: Solve for x
    x = 11,821,012,678,602,346/93,672,447.60
  6. Step 6: Final answer
    x = 126,195,193.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.