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Finding the Fourth Proportional to 58,172.40, 86,999.40 and 48,841.20

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Solution

The fourth proportional to 58,172.40, 86,999.40 and 48,841.20 is: 73,044.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,172.40 : 86,999.40 = 48,841.20 : x
  2. Step 2: Convert to fraction form
    58,172.40/86,999.40 = 48,841.20/x
  3. Step 3: Cross multiply
    58,172.40x = 86,999.40 × 48,841.20
  4. Step 4: Simplify right side
    58,172.40x = 4,249,155,095.28
  5. Step 5: Solve for x
    x = 4,249,155,095.28/58,172.40
  6. Step 6: Final answer
    x = 73,044.18

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1.5x scale

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.