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Finding the Fourth Proportional to 191,337.90, 287,334.90 and 125,071.80

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Solution

The fourth proportional to 191,337.90, 287,334.90 and 125,071.80 is: 187,822.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,337.90 : 287,334.90 = 125,071.80 : x
  2. Step 2: Convert to fraction form
    191,337.90/287,334.90 = 125,071.80/x
  3. Step 3: Cross multiply
    191,337.90x = 287,334.90 × 125,071.80
  4. Step 4: Simplify right side
    191,337.90x = 35,937,493,145.82
  5. Step 5: Solve for x
    x = 35,937,493,145.82/191,337.90
  6. Step 6: Final answer
    x = 187,822.14

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1.5x scale

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.