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Finding the Fourth Proportional to 249,445.84, 344,218.80 and 142,026.88

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Solution

The fourth proportional to 249,445.84, 344,218.80 and 142,026.88 is: 195,987.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,445.84 : 344,218.80 = 142,026.88 : x
  2. Step 2: Convert to fraction form
    249,445.84/344,218.80 = 142,026.88/x
  3. Step 3: Cross multiply
    249,445.84x = 344,218.80 × 142,026.88
  4. Step 4: Simplify right side
    249,445.84x = 48,888,322,201.34
  5. Step 5: Solve for x
    x = 48,888,322,201.34/249,445.84
  6. Step 6: Final answer
    x = 195,987.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.