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Finding the Fourth Proportional to 161,993.60, 242,988.96 and 43,655.12

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Solution

The fourth proportional to 161,993.60, 242,988.96 and 43,655.12 is: 65,482.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,993.60 : 242,988.96 = 43,655.12 : x
  2. Step 2: Convert to fraction form
    161,993.60/242,988.96 = 43,655.12/x
  3. Step 3: Cross multiply
    161,993.60x = 242,988.96 × 43,655.12
  4. Step 4: Simplify right side
    161,993.60x = 10,607,712,207.48
  5. Step 5: Solve for x
    x = 10,607,712,207.48/161,993.60
  6. Step 6: Final answer
    x = 65,482.29

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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.