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Finding the Fourth Proportional to 608,047.70, 912,071.55 and 164,815.70

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Solution

The fourth proportional to 608,047.70, 912,071.55 and 164,815.70 is: 247,223.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,047.70 : 912,071.55 = 164,815.70 : x
  2. Step 2: Convert to fraction form
    608,047.70/912,071.55 = 164,815.70/x
  3. Step 3: Cross multiply
    608,047.70x = 912,071.55 × 164,815.70
  4. Step 4: Simplify right side
    608,047.70x = 150,323,710,963.34
  5. Step 5: Solve for x
    x = 150,323,710,963.34/608,047.70
  6. Step 6: Final answer
    x = 247,223.55

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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.