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Finding the Fourth Proportional to 249,507.52, 344,316.36 and 136,327.84

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Solution

The fourth proportional to 249,507.52, 344,316.36 and 136,327.84 is: 188,130.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,507.52 : 344,316.36 = 136,327.84 : x
  2. Step 2: Convert to fraction form
    249,507.52/344,316.36 = 136,327.84/x
  3. Step 3: Cross multiply
    249,507.52x = 344,316.36 × 136,327.84
  4. Step 4: Simplify right side
    249,507.52x = 46,939,905,635.46
  5. Step 5: Solve for x
    x = 46,939,905,635.46/249,507.52
  6. Step 6: Final answer
    x = 188,130.22

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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.