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Finding the Fourth Proportional to 58,795.80, 88,136.10 and 30,730.20

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Solution

The fourth proportional to 58,795.80, 88,136.10 and 30,730.20 is: 46,065.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,795.80 : 88,136.10 = 30,730.20 : x
  2. Step 2: Convert to fraction form
    58,795.80/88,136.10 = 30,730.20/x
  3. Step 3: Cross multiply
    58,795.80x = 88,136.10 × 30,730.20
  4. Step 4: Simplify right side
    58,795.80x = 2,708,439,980.22
  5. Step 5: Solve for x
    x = 2,708,439,980.22/58,795.80
  6. Step 6: Final answer
    x = 46,065.19

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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.