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Finding the Fourth Proportional to 207,032.40, 310,548.60 and 144,046.80

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Solution

The fourth proportional to 207,032.40, 310,548.60 and 144,046.80 is: 216,070.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,032.40 : 310,548.60 = 144,046.80 : x
  2. Step 2: Convert to fraction form
    207,032.40/310,548.60 = 144,046.80/x
  3. Step 3: Cross multiply
    207,032.40x = 310,548.60 × 144,046.80
  4. Step 4: Simplify right side
    207,032.40x = 44,733,532,074.48
  5. Step 5: Solve for x
    x = 44,733,532,074.48/207,032.40
  6. Step 6: Final answer
    x = 216,070.20

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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.