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Finding the Fourth Proportional to 93,650.76, 129,281.40 and 55,398.24

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Solution

The fourth proportional to 93,650.76, 129,281.40 and 55,398.24 is: 76,475.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,650.76 : 129,281.40 = 55,398.24 : x
  2. Step 2: Convert to fraction form
    93,650.76/129,281.40 = 55,398.24/x
  3. Step 3: Cross multiply
    93,650.76x = 129,281.40 × 55,398.24
  4. Step 4: Simplify right side
    93,650.76x = 7,161,962,024.74
  5. Step 5: Solve for x
    x = 7,161,962,024.74/93,650.76
  6. Step 6: Final answer
    x = 76,475.22

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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.