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Finding the Fourth Proportional to 145,676,019.60, 218,514,029.40 and 145,676,019.60

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Solution

The fourth proportional to 145,676,019.60, 218,514,029.40 and 145,676,019.60 is: 218,514,029.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,676,019.60 : 218,514,029.40 = 145,676,019.60 : x
  2. Step 2: Convert to fraction form
    145,676,019.60/218,514,029.40 = 145,676,019.60/x
  3. Step 3: Cross multiply
    145,676,019.60x = 218,514,029.40 × 145,676,019.60
  4. Step 4: Simplify right side
    145,676,019.60x = 31,832,254,029,749,376
  5. Step 5: Solve for x
    x = 31,832,254,029,749,376/145,676,019.60
  6. Step 6: Final answer
    x = 218,514,029.40

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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.