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Finding the Fourth Proportional to 153,273.68, 211,397.86 and 99,576.00

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Solution

The fourth proportional to 153,273.68, 211,397.86 and 99,576.00 is: 137,337.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,273.68 : 211,397.86 = 99,576.00 : x
  2. Step 2: Convert to fraction form
    153,273.68/211,397.86 = 99,576.00/x
  3. Step 3: Cross multiply
    153,273.68x = 211,397.86 × 99,576.00
  4. Step 4: Simplify right side
    153,273.68x = 21,050,151,752.49
  5. Step 5: Solve for x
    x = 21,050,151,752.49/153,273.68
  6. Step 6: Final answer
    x = 137,337.03

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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.