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Finding the Fourth Proportional to 625,974.84, 938,971.98 and 152,669.16

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Solution

The fourth proportional to 625,974.84, 938,971.98 and 152,669.16 is: 229,006.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,974.84 : 938,971.98 = 152,669.16 : x
  2. Step 2: Convert to fraction form
    625,974.84/938,971.98 = 152,669.16/x
  3. Step 3: Cross multiply
    625,974.84x = 938,971.98 × 152,669.16
  4. Step 4: Simplify right side
    625,974.84x = 143,352,063,450.14
  5. Step 5: Solve for x
    x = 143,352,063,450.14/625,974.84
  6. Step 6: Final answer
    x = 229,006.11

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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.