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Finding the Fourth Proportional to 45,942,207.40, 64,366,920.05 and 45,942,207.40

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Solution

The fourth proportional to 45,942,207.40, 64,366,920.05 and 45,942,207.40 is: 64,366,920.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,942,207.40 : 64,366,920.05 = 45,942,207.40 : x
  2. Step 2: Convert to fraction form
    45,942,207.40/64,366,920.05 = 45,942,207.40/x
  3. Step 3: Cross multiply
    45,942,207.40x = 64,366,920.05 × 45,942,207.40
  4. Step 4: Simplify right side
    45,942,207.40x = 2,957,158,390,636,318
  5. Step 5: Solve for x
    x = 2,957,158,390,636,318/45,942,207.40
  6. Step 6: Final answer
    x = 64,366,920.05

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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.