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Finding the Fourth Proportional to 316,161.60, 474,612.80 and 249,646.56

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Solution

The fourth proportional to 316,161.60, 474,612.80 and 249,646.56 is: 374,762.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,161.60 : 474,612.80 = 249,646.56 : x
  2. Step 2: Convert to fraction form
    316,161.60/474,612.80 = 249,646.56/x
  3. Step 3: Cross multiply
    316,161.60x = 474,612.80 × 249,646.56
  4. Step 4: Simplify right side
    316,161.60x = 118,485,452,851.97
  5. Step 5: Solve for x
    x = 118,485,452,851.97/316,161.60
  6. Step 6: Final answer
    x = 374,762.31

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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.