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Finding the Fourth Proportional to 93,545.04, 129,048.84 and 53,778

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Solution

The fourth proportional to 93,545.04, 129,048.84 and 53,778 is: 74,188.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,545.04 : 129,048.84 = 53,778 : x
  2. Step 2: Convert to fraction form
    93,545.04/129,048.84 = 53,778/x
  3. Step 3: Cross multiply
    93,545.04x = 129,048.84 × 53,778
  4. Step 4: Simplify right side
    93,545.04x = 6,939,988,517.52
  5. Step 5: Solve for x
    x = 6,939,988,517.52/93,545.04
  6. Step 6: Final answer
    x = 74,188.74

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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.