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Finding the Fourth Proportional to 256,762.60, 354,333.06 and 143,585.34

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Solution

The fourth proportional to 256,762.60, 354,333.06 and 143,585.34 is: 198,148.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,762.60 : 354,333.06 = 143,585.34 : x
  2. Step 2: Convert to fraction form
    256,762.60/354,333.06 = 143,585.34/x
  3. Step 3: Cross multiply
    256,762.60x = 354,333.06 × 143,585.34
  4. Step 4: Simplify right side
    256,762.60x = 50,877,032,893.34
  5. Step 5: Solve for x
    x = 50,877,032,893.34/256,762.60
  6. Step 6: Final answer
    x = 198,148.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.