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Finding the Fourth Proportional to 160,730.67, 240,862.73 and 90,459.93

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Solution

The fourth proportional to 160,730.67, 240,862.73 and 90,459.93 is: 135,558.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,730.67 : 240,862.73 = 90,459.93 : x
  2. Step 2: Convert to fraction form
    160,730.67/240,862.73 = 90,459.93/x
  3. Step 3: Cross multiply
    160,730.67x = 240,862.73 × 90,459.93
  4. Step 4: Simplify right side
    160,730.67x = 21,788,425,243.11
  5. Step 5: Solve for x
    x = 21,788,425,243.11/160,730.67
  6. Step 6: Final answer
    x = 135,558.60

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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.