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Finding the Fourth Proportional to 130,377,873.80, 195,566,810.70 and 65,656,670.60

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Solution

The fourth proportional to 130,377,873.80, 195,566,810.70 and 65,656,670.60 is: 98,485,005.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,377,873.80 : 195,566,810.70 = 65,656,670.60 : x
  2. Step 2: Convert to fraction form
    130,377,873.80/195,566,810.70 = 65,656,670.60/x
  3. Step 3: Cross multiply
    130,377,873.80x = 195,566,810.70 × 65,656,670.60
  4. Step 4: Simplify right side
    130,377,873.80x = 12,840,265,670,422,454
  5. Step 5: Solve for x
    x = 12,840,265,670,422,454/130,377,873.80
  6. Step 6: Final answer
    x = 98,485,005.90

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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.