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Finding the Fourth Proportional to 125,592, 173,277.86 and 77,143.10

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Solution

The fourth proportional to 125,592, 173,277.86 and 77,143.10 is: 106,433.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,592 : 173,277.86 = 77,143.10 : x
  2. Step 2: Convert to fraction form
    125,592/173,277.86 = 77,143.10/x
  3. Step 3: Cross multiply
    125,592x = 173,277.86 × 77,143.10
  4. Step 4: Simplify right side
    125,592x = 13,367,191,281.77
  5. Step 5: Solve for x
    x = 13,367,191,281.77/125,592
  6. Step 6: Final answer
    x = 106,433.46

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.