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Finding the Fourth Proportional to 166,111.80, 249,167.70 and 153,281.40

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Solution

The fourth proportional to 166,111.80, 249,167.70 and 153,281.40 is: 229,922.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,111.80 : 249,167.70 = 153,281.40 : x
  2. Step 2: Convert to fraction form
    166,111.80/249,167.70 = 153,281.40/x
  3. Step 3: Cross multiply
    166,111.80x = 249,167.70 × 153,281.40
  4. Step 4: Simplify right side
    166,111.80x = 38,192,773,890.78
  5. Step 5: Solve for x
    x = 38,192,773,890.78/166,111.80
  6. Step 6: Final answer
    x = 229,922.10

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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.