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Finding the Fourth Proportional to 93,712.92, 129,322.64 and 53,425.36

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Solution

The fourth proportional to 93,712.92, 129,322.64 and 53,425.36 is: 73,726.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,712.92 : 129,322.64 = 53,425.36 : x
  2. Step 2: Convert to fraction form
    93,712.92/129,322.64 = 53,425.36/x
  3. Step 3: Cross multiply
    93,712.92x = 129,322.64 × 53,425.36
  4. Step 4: Simplify right side
    93,712.92x = 6,909,108,598.15
  5. Step 5: Solve for x
    x = 6,909,108,598.15/93,712.92
  6. Step 6: Final answer
    x = 73,726.32

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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.