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Finding the Fourth Proportional to 117,007.20, 175,510.80 and 87,482.70

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Solution

The fourth proportional to 117,007.20, 175,510.80 and 87,482.70 is: 131,224.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,007.20 : 175,510.80 = 87,482.70 : x
  2. Step 2: Convert to fraction form
    117,007.20/175,510.80 = 87,482.70/x
  3. Step 3: Cross multiply
    117,007.20x = 175,510.80 × 87,482.70
  4. Step 4: Simplify right side
    117,007.20x = 15,354,158,663.16
  5. Step 5: Solve for x
    x = 15,354,158,663.16/117,007.20
  6. Step 6: Final answer
    x = 131,224.05

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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.