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Finding the Fourth Proportional to 125,639.60, 176,362 and 125,639.60

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Solution

The fourth proportional to 125,639.60, 176,362 and 125,639.60 is: 176,362

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,639.60 : 176,362 = 125,639.60 : x
  2. Step 2: Convert to fraction form
    125,639.60/176,362 = 125,639.60/x
  3. Step 3: Cross multiply
    125,639.60x = 176,362 × 125,639.60
  4. Step 4: Simplify right side
    125,639.60x = 22,158,051,135.20
  5. Step 5: Solve for x
    x = 22,158,051,135.20/125,639.60
  6. Step 6: Final answer
    x = 176,362

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.