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Finding the Fourth Proportional to 353,428.32, 530,030.16 and 116,726.88

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Solution

The fourth proportional to 353,428.32, 530,030.16 and 116,726.88 is: 175,053.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,428.32 : 530,030.16 = 116,726.88 : x
  2. Step 2: Convert to fraction form
    353,428.32/530,030.16 = 116,726.88/x
  3. Step 3: Cross multiply
    353,428.32x = 530,030.16 × 116,726.88
  4. Step 4: Simplify right side
    353,428.32x = 61,868,766,882.70
  5. Step 5: Solve for x
    x = 61,868,766,882.70/353,428.32
  6. Step 6: Final answer
    x = 175,053.22

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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.