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Finding the Fourth Proportional to 175,894.60, 242,720.10 and 99,420.22

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Solution

The fourth proportional to 175,894.60, 242,720.10 and 99,420.22 is: 137,191.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    175,894.60 : 242,720.10 = 99,420.22 : x
  2. Step 2: Convert to fraction form
    175,894.60/242,720.10 = 99,420.22/x
  3. Step 3: Cross multiply
    175,894.60x = 242,720.10 × 99,420.22
  4. Step 4: Simplify right side
    175,894.60x = 24,131,285,740.42
  5. Step 5: Solve for x
    x = 24,131,285,740.42/175,894.60
  6. Step 6: Final answer
    x = 137,191.74

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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.