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Finding the Fourth Proportional to 93,646.54, 129,336.54 and 86,560.66

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Solution

The fourth proportional to 93,646.54, 129,336.54 and 86,560.66 is: 119,550.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,646.54 : 129,336.54 = 86,560.66 : x
  2. Step 2: Convert to fraction form
    93,646.54/129,336.54 = 86,560.66/x
  3. Step 3: Cross multiply
    93,646.54x = 129,336.54 × 86,560.66
  4. Step 4: Simplify right side
    93,646.54x = 11,195,455,617.52
  5. Step 5: Solve for x
    x = 11,195,455,617.52/93,646.54
  6. Step 6: Final answer
    x = 119,550.13

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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.