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Finding the Fourth Proportional to 238,391.90, 357,603.06 and 69,909.08

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Solution

The fourth proportional to 238,391.90, 357,603.06 and 69,909.08 is: 104,868.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,391.90 : 357,603.06 = 69,909.08 : x
  2. Step 2: Convert to fraction form
    238,391.90/357,603.06 = 69,909.08/x
  3. Step 3: Cross multiply
    238,391.90x = 357,603.06 × 69,909.08
  4. Step 4: Simplify right side
    238,391.90x = 24,999,700,929.78
  5. Step 5: Solve for x
    x = 24,999,700,929.78/238,391.90
  6. Step 6: Final answer
    x = 104,868.08

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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.