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Finding the Fourth Proportional to 97,720.55, 146,602.32 and 55,620.44

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Solution

The fourth proportional to 97,720.55, 146,602.32 and 55,620.44 is: 83,442.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,720.55 : 146,602.32 = 55,620.44 : x
  2. Step 2: Convert to fraction form
    97,720.55/146,602.32 = 55,620.44/x
  3. Step 3: Cross multiply
    97,720.55x = 146,602.32 × 55,620.44
  4. Step 4: Simplify right side
    97,720.55x = 8,154,085,543.42
  5. Step 5: Solve for x
    x = 8,154,085,543.42/97,720.55
  6. Step 6: Final answer
    x = 83,442.89

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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.