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Finding the Fourth Proportional to 249,558.72, 343,807.20 and 173,972.16

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Solution

The fourth proportional to 249,558.72, 343,807.20 and 173,972.16 is: 239,674.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,558.72 : 343,807.20 = 173,972.16 : x
  2. Step 2: Convert to fraction form
    249,558.72/343,807.20 = 173,972.16/x
  3. Step 3: Cross multiply
    249,558.72x = 343,807.20 × 173,972.16
  4. Step 4: Simplify right side
    249,558.72x = 59,812,881,207.55
  5. Step 5: Solve for x
    x = 59,812,881,207.55/249,558.72
  6. Step 6: Final answer
    x = 239,674.58

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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.