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Finding the Fourth Proportional to 66,437,801.70, 99,656,702.55 and 26,048,285.70

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Solution

The fourth proportional to 66,437,801.70, 99,656,702.55 and 26,048,285.70 is: 39,072,428.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,437,801.70 : 99,656,702.55 = 26,048,285.70 : x
  2. Step 2: Convert to fraction form
    66,437,801.70/99,656,702.55 = 26,048,285.70/x
  3. Step 3: Cross multiply
    66,437,801.70x = 99,656,702.55 × 26,048,285.70
  4. Step 4: Simplify right side
    66,437,801.70x = 2,595,886,259,942,318.50
  5. Step 5: Solve for x
    x = 2,595,886,259,942,318.50/66,437,801.70
  6. Step 6: Final answer
    x = 39,072,428.55

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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.