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Finding the Fourth Proportional to 166,153.80, 249,230.70 and 153,323.40

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Solution

The fourth proportional to 166,153.80, 249,230.70 and 153,323.40 is: 229,985.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,153.80 : 249,230.70 = 153,323.40 : x
  2. Step 2: Convert to fraction form
    166,153.80/249,230.70 = 153,323.40/x
  3. Step 3: Cross multiply
    166,153.80x = 249,230.70 × 153,323.40
  4. Step 4: Simplify right side
    166,153.80x = 38,212,898,308.38
  5. Step 5: Solve for x
    x = 38,212,898,308.38/166,153.80
  6. Step 6: Final answer
    x = 229,985.10

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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.