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Finding the Fourth Proportional to 153,626.97, 211,885.04 and 99,929.14

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Solution

The fourth proportional to 153,626.97, 211,885.04 and 99,929.14 is: 137,824.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,626.97 : 211,885.04 = 99,929.14 : x
  2. Step 2: Convert to fraction form
    153,626.97/211,885.04 = 99,929.14/x
  3. Step 3: Cross multiply
    153,626.97x = 211,885.04 × 99,929.14
  4. Step 4: Simplify right side
    153,626.97x = 21,173,488,796.71
  5. Step 5: Solve for x
    x = 21,173,488,796.71/153,626.97
  6. Step 6: Final answer
    x = 137,824.03

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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.