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Finding the Fourth Proportional to 116,885.80, 175,328.70 and 42,041.80

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Solution

The fourth proportional to 116,885.80, 175,328.70 and 42,041.80 is: 63,062.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,885.80 : 175,328.70 = 42,041.80 : x
  2. Step 2: Convert to fraction form
    116,885.80/175,328.70 = 42,041.80/x
  3. Step 3: Cross multiply
    116,885.80x = 175,328.70 × 42,041.80
  4. Step 4: Simplify right side
    116,885.80x = 7,371,134,139.66
  5. Step 5: Solve for x
    x = 7,371,134,139.66/116,885.80
  6. Step 6: Final answer
    x = 63,062.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.