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Finding the Fourth Proportional to 93,686.61, 129,300.03 and 52,859.11

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Solution

The fourth proportional to 93,686.61, 129,300.03 and 52,859.11 is: 72,952.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,686.61 : 129,300.03 = 52,859.11 : x
  2. Step 2: Convert to fraction form
    93,686.61/129,300.03 = 52,859.11/x
  3. Step 3: Cross multiply
    93,686.61x = 129,300.03 × 52,859.11
  4. Step 4: Simplify right side
    93,686.61x = 6,834,684,508.77
  5. Step 5: Solve for x
    x = 6,834,684,508.77/93,686.61
  6. Step 6: Final answer
    x = 72,952.63

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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.