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Finding the Fourth Proportional to 60,698,749.60, 91,048,124.40 and 19,762,046.20

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Solution

The fourth proportional to 60,698,749.60, 91,048,124.40 and 19,762,046.20 is: 29,643,069.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,698,749.60 : 91,048,124.40 = 19,762,046.20 : x
  2. Step 2: Convert to fraction form
    60,698,749.60/91,048,124.40 = 19,762,046.20/x
  3. Step 3: Cross multiply
    60,698,749.60x = 91,048,124.40 × 19,762,046.20
  4. Step 4: Simplify right side
    60,698,749.60x = 1,799,297,240,816,147.25
  5. Step 5: Solve for x
    x = 1,799,297,240,816,147.25/60,698,749.60
  6. Step 6: Final answer
    x = 29,643,069.30

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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.