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Finding the Fourth Proportional to 111,370.32, 153,698.04 and 61,069.32

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Solution

The fourth proportional to 111,370.32, 153,698.04 and 61,069.32 is: 84,279.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,370.32 : 153,698.04 = 61,069.32 : x
  2. Step 2: Convert to fraction form
    111,370.32/153,698.04 = 61,069.32/x
  3. Step 3: Cross multiply
    111,370.32x = 153,698.04 × 61,069.32
  4. Step 4: Simplify right side
    111,370.32x = 9,386,234,788.13
  5. Step 5: Solve for x
    x = 9,386,234,788.13/111,370.32
  6. Step 6: Final answer
    x = 84,279.50

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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.