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Finding the Fourth Proportional to 172,531.63, 238,087.81 and 97,065.55

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Solution

The fourth proportional to 172,531.63, 238,087.81 and 97,065.55 is: 133,947.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,531.63 : 238,087.81 = 97,065.55 : x
  2. Step 2: Convert to fraction form
    172,531.63/238,087.81 = 97,065.55/x
  3. Step 3: Cross multiply
    172,531.63x = 238,087.81 × 97,065.55
  4. Step 4: Simplify right side
    172,531.63x = 23,110,124,225.95
  5. Step 5: Solve for x
    x = 23,110,124,225.95/172,531.63
  6. Step 6: Final answer
    x = 133,947.17

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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.