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Finding the Fourth Proportional to 117,007.30, 175,510.95 and 115,257.70

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Solution

The fourth proportional to 117,007.30, 175,510.95 and 115,257.70 is: 172,886.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,007.30 : 175,510.95 = 115,257.70 : x
  2. Step 2: Convert to fraction form
    117,007.30/175,510.95 = 115,257.70/x
  3. Step 3: Cross multiply
    117,007.30x = 175,510.95 × 115,257.70
  4. Step 4: Simplify right side
    117,007.30x = 20,228,988,421.82
  5. Step 5: Solve for x
    x = 20,228,988,421.82/117,007.30
  6. Step 6: Final answer
    x = 172,886.55

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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.