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Finding the Fourth Proportional to 249,330.98, 374,144.43 and 99,641.90

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Solution

The fourth proportional to 249,330.98, 374,144.43 and 99,641.90 is: 149,521.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,330.98 : 374,144.43 = 99,641.90 : x
  2. Step 2: Convert to fraction form
    249,330.98/374,144.43 = 99,641.90/x
  3. Step 3: Cross multiply
    249,330.98x = 374,144.43 × 99,641.90
  4. Step 4: Simplify right side
    249,330.98x = 37,280,461,879.62
  5. Step 5: Solve for x
    x = 37,280,461,879.62/249,330.98
  6. Step 6: Final answer
    x = 149,521.98

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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.