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Finding the Fourth Proportional to 9,358,079.70, 13,129,655.10 and 9,358,079.70

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Solution

The fourth proportional to 9,358,079.70, 13,129,655.10 and 9,358,079.70 is: 13,129,655.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,358,079.70 : 13,129,655.10 = 9,358,079.70 : x
  2. Step 2: Convert to fraction form
    9,358,079.70/13,129,655.10 = 9,358,079.70/x
  3. Step 3: Cross multiply
    9,358,079.70x = 13,129,655.10 × 9,358,079.70
  4. Step 4: Simplify right side
    9,358,079.70x = 122,868,358,859,311.45
  5. Step 5: Solve for x
    x = 122,868,358,859,311.45/9,358,079.70
  6. Step 6: Final answer
    x = 13,129,655.10

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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.