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Finding the Fourth Proportional to 249,527.61, 374,439.65 and 91,866.78

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Solution

The fourth proportional to 249,527.61, 374,439.65 and 91,866.78 is: 137,854.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,527.61 : 374,439.65 = 91,866.78 : x
  2. Step 2: Convert to fraction form
    249,527.61/374,439.65 = 91,866.78/x
  3. Step 3: Cross multiply
    249,527.61x = 374,439.65 × 91,866.78
  4. Step 4: Simplify right side
    249,527.61x = 34,398,564,490.49
  5. Step 5: Solve for x
    x = 34,398,564,490.49/249,527.61
  6. Step 6: Final answer
    x = 137,854.74

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1.5x scale

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.