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Finding the Fourth Proportional to 160,655.74, 240,752.76 and 90,386.62

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Solution

The fourth proportional to 160,655.74, 240,752.76 and 90,386.62 is: 135,450.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,655.74 : 240,752.76 = 90,386.62 : x
  2. Step 2: Convert to fraction form
    160,655.74/240,752.76 = 90,386.62/x
  3. Step 3: Cross multiply
    160,655.74x = 240,752.76 × 90,386.62
  4. Step 4: Simplify right side
    160,655.74x = 21,760,827,291.24
  5. Step 5: Solve for x
    x = 21,760,827,291.24/160,655.74
  6. Step 6: Final answer
    x = 135,450.05

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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.