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Finding the Fourth Proportional to 93,765.59, 129,391.53 and 51,315.92

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Solution

The fourth proportional to 93,765.59, 129,391.53 and 51,315.92 is: 70,813.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,765.59 : 129,391.53 = 51,315.92 : x
  2. Step 2: Convert to fraction form
    93,765.59/129,391.53 = 51,315.92/x
  3. Step 3: Cross multiply
    93,765.59x = 129,391.53 × 51,315.92
  4. Step 4: Simplify right side
    93,765.59x = 6,639,845,402.16
  5. Step 5: Solve for x
    x = 6,639,845,402.16/93,765.59
  6. Step 6: Final answer
    x = 70,813.24

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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.