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Finding the Fourth Proportional to 157,043.91, 235,429.18 and 100,899.98

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Solution

The fourth proportional to 157,043.91, 235,429.18 and 100,899.98 is: 151,262.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,043.91 : 235,429.18 = 100,899.98 : x
  2. Step 2: Convert to fraction form
    157,043.91/235,429.18 = 100,899.98/x
  3. Step 3: Cross multiply
    157,043.91x = 235,429.18 × 100,899.98
  4. Step 4: Simplify right side
    157,043.91x = 23,754,798,124.02
  5. Step 5: Solve for x
    x = 23,754,798,124.02/157,043.91
  6. Step 6: Final answer
    x = 151,262.14

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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.