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Finding the Fourth Proportional to 111,346.52, 153,657.96 and 61,045.52

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Solution

The fourth proportional to 111,346.52, 153,657.96 and 61,045.52 is: 84,242.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,346.52 : 153,657.96 = 61,045.52 : x
  2. Step 2: Convert to fraction form
    111,346.52/153,657.96 = 61,045.52/x
  3. Step 3: Cross multiply
    111,346.52x = 153,657.96 × 61,045.52
  4. Step 4: Simplify right side
    111,346.52x = 9,380,130,070.34
  5. Step 5: Solve for x
    x = 9,380,130,070.34/111,346.52
  6. Step 6: Final answer
    x = 84,242.69

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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.