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Finding the Fourth Proportional to 96,773,895.60, 145,160,843.40 and 86,920,148.40

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Solution

The fourth proportional to 96,773,895.60, 145,160,843.40 and 86,920,148.40 is: 130,380,222.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,773,895.60 : 145,160,843.40 = 86,920,148.40 : x
  2. Step 2: Convert to fraction form
    96,773,895.60/145,160,843.40 = 86,920,148.40/x
  3. Step 3: Cross multiply
    96,773,895.60x = 145,160,843.40 × 86,920,148.40
  4. Step 4: Simplify right side
    96,773,895.60x = 12,617,402,050,197,162
  5. Step 5: Solve for x
    x = 12,617,402,050,197,162/96,773,895.60
  6. Step 6: Final answer
    x = 130,380,222.60

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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.