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Finding the Fourth Proportional to 249,068.64, 343,700.64 and 141,664.80

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Solution

The fourth proportional to 249,068.64, 343,700.64 and 141,664.80 is: 195,489.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,068.64 : 343,700.64 = 141,664.80 : x
  2. Step 2: Convert to fraction form
    249,068.64/343,700.64 = 141,664.80/x
  3. Step 3: Cross multiply
    249,068.64x = 343,700.64 × 141,664.80
  4. Step 4: Simplify right side
    249,068.64x = 48,690,282,425.47
  5. Step 5: Solve for x
    x = 48,690,282,425.47/249,068.64
  6. Step 6: Final answer
    x = 195,489.41

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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.