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Finding the Fourth Proportional to 249,870.30, 374,805.45 and 83,658.30

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Solution

The fourth proportional to 249,870.30, 374,805.45 and 83,658.30 is: 125,487.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,870.30 : 374,805.45 = 83,658.30 : x
  2. Step 2: Convert to fraction form
    249,870.30/374,805.45 = 83,658.30/x
  3. Step 3: Cross multiply
    249,870.30x = 374,805.45 × 83,658.30
  4. Step 4: Simplify right side
    249,870.30x = 31,355,586,777.74
  5. Step 5: Solve for x
    x = 31,355,586,777.74/249,870.30
  6. Step 6: Final answer
    x = 125,487.45

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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.