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Finding the Fourth Proportional to 161,718.90, 242,578.35 and 124,350.90

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Solution

The fourth proportional to 161,718.90, 242,578.35 and 124,350.90 is: 186,526.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,718.90 : 242,578.35 = 124,350.90 : x
  2. Step 2: Convert to fraction form
    161,718.90/242,578.35 = 124,350.90/x
  3. Step 3: Cross multiply
    161,718.90x = 242,578.35 × 124,350.90
  4. Step 4: Simplify right side
    161,718.90x = 30,164,836,143.02
  5. Step 5: Solve for x
    x = 30,164,836,143.02/161,718.90
  6. Step 6: Final answer
    x = 186,526.35

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Similar ratio
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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.