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Finding the Fourth Proportional to 69,502,629.60, 104,303,710.80 and 29,142,079.20

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Solution

The fourth proportional to 69,502,629.60, 104,303,710.80 and 29,142,079.20 is: 43,733,985.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,502,629.60 : 104,303,710.80 = 29,142,079.20 : x
  2. Step 2: Convert to fraction form
    69,502,629.60/104,303,710.80 = 29,142,079.20/x
  3. Step 3: Cross multiply
    69,502,629.60x = 104,303,710.80 × 29,142,079.20
  4. Step 4: Simplify right side
    69,502,629.60x = 3,039,627,000,987,495
  5. Step 5: Solve for x
    x = 3,039,627,000,987,495/69,502,629.60
  6. Step 6: Final answer
    x = 43,733,985.58

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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.