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Finding the Fourth Proportional to 79,164,021.80, 118,746,032.70 and 79,164,021.80

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Solution

The fourth proportional to 79,164,021.80, 118,746,032.70 and 79,164,021.80 is: 118,746,032.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,164,021.80 : 118,746,032.70 = 79,164,021.80 : x
  2. Step 2: Convert to fraction form
    79,164,021.80/118,746,032.70 = 79,164,021.80/x
  3. Step 3: Cross multiply
    79,164,021.80x = 118,746,032.70 × 79,164,021.80
  4. Step 4: Simplify right side
    79,164,021.80x = 9,400,413,521,326,312
  5. Step 5: Solve for x
    x = 9,400,413,521,326,312/79,164,021.80
  6. Step 6: Final answer
    x = 118,746,032.70

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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.