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Finding the Fourth Proportional to 127,343.50, 175,734.06 and 70,754.86

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Solution

The fourth proportional to 127,343.50, 175,734.06 and 70,754.86 is: 97,641.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,343.50 : 175,734.06 = 70,754.86 : x
  2. Step 2: Convert to fraction form
    127,343.50/175,734.06 = 70,754.86/x
  3. Step 3: Cross multiply
    127,343.50x = 175,734.06 × 70,754.86
  4. Step 4: Simplify right side
    127,343.50x = 12,434,038,812.53
  5. Step 5: Solve for x
    x = 12,434,038,812.53/127,343.50
  6. Step 6: Final answer
    x = 97,641.72

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1.5x scale

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.