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Finding the Fourth Proportional to 130,361,878.80, 195,566,437.80 and 65,502,457.20

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Solution

The fourth proportional to 130,361,878.80, 195,566,437.80 and 65,502,457.20 is: 98,265,553.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,361,878.80 : 195,566,437.80 = 65,502,457.20 : x
  2. Step 2: Convert to fraction form
    130,361,878.80/195,566,437.80 = 65,502,457.20/x
  3. Step 3: Cross multiply
    130,361,878.80x = 195,566,437.80 × 65,502,457.20
  4. Step 4: Simplify right side
    130,361,878.80x = 12,810,082,221,750,964
  5. Step 5: Solve for x
    x = 12,810,082,221,750,964/130,361,878.80
  6. Step 6: Final answer
    x = 98,265,553.85

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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.