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Finding the Fourth Proportional to 98,396,704.80, 147,658,042.80 and 57,456,064.80

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Solution

The fourth proportional to 98,396,704.80, 147,658,042.80 and 57,456,064.80 is: 86,220,875.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,396,704.80 : 147,658,042.80 = 57,456,064.80 : x
  2. Step 2: Convert to fraction form
    98,396,704.80/147,658,042.80 = 57,456,064.80/x
  3. Step 3: Cross multiply
    98,396,704.80x = 147,658,042.80 × 57,456,064.80
  4. Step 4: Simplify right side
    98,396,704.80x = 8,483,850,075,357,974
  5. Step 5: Solve for x
    x = 8,483,850,075,357,974/98,396,704.80
  6. Step 6: Final answer
    x = 86,220,875.92

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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.