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Finding the Fourth Proportional to 125,416.60, 188,432.10 and 94,312.60

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Solution

The fourth proportional to 125,416.60, 188,432.10 and 94,312.60 is: 141,699.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,416.60 : 188,432.10 = 94,312.60 : x
  2. Step 2: Convert to fraction form
    125,416.60/188,432.10 = 94,312.60/x
  3. Step 3: Cross multiply
    125,416.60x = 188,432.10 × 94,312.60
  4. Step 4: Simplify right side
    125,416.60x = 17,771,521,274.46
  5. Step 5: Solve for x
    x = 17,771,521,274.46/125,416.60
  6. Step 6: Final answer
    x = 141,699.91

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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.