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Finding the Fourth Proportional to 125,316, 187,955.82 and 36,545.76

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Solution

The fourth proportional to 125,316, 187,955.82 and 36,545.76 is: 54,813.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,316 : 187,955.82 = 36,545.76 : x
  2. Step 2: Convert to fraction form
    125,316/187,955.82 = 36,545.76/x
  3. Step 3: Cross multiply
    125,316x = 187,955.82 × 36,545.76
  4. Step 4: Simplify right side
    125,316x = 6,868,988,288.32
  5. Step 5: Solve for x
    x = 6,868,988,288.32/125,316
  6. Step 6: Final answer
    x = 54,813.34

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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.