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Finding the Fourth Proportional to 103,062.70, 144,702.50 and 103,062.70

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Solution

The fourth proportional to 103,062.70, 144,702.50 and 103,062.70 is: 144,702.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,062.70 : 144,702.50 = 103,062.70 : x
  2. Step 2: Convert to fraction form
    103,062.70/144,702.50 = 103,062.70/x
  3. Step 3: Cross multiply
    103,062.70x = 144,702.50 × 103,062.70
  4. Step 4: Simplify right side
    103,062.70x = 14,913,430,346.75
  5. Step 5: Solve for x
    x = 14,913,430,346.75/103,062.70
  6. Step 6: Final answer
    x = 144,702.50

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.