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Finding the Fourth Proportional to 161,837.40, 242,813.70 and 156,077.40

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Solution

The fourth proportional to 161,837.40, 242,813.70 and 156,077.40 is: 234,171.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,837.40 : 242,813.70 = 156,077.40 : x
  2. Step 2: Convert to fraction form
    161,837.40/242,813.70 = 156,077.40/x
  3. Step 3: Cross multiply
    161,837.40x = 242,813.70 × 156,077.40
  4. Step 4: Simplify right side
    161,837.40x = 37,897,730,980.38
  5. Step 5: Solve for x
    x = 37,897,730,980.38/161,837.40
  6. Step 6: Final answer
    x = 234,171.65

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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.