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Finding the Fourth Proportional to 64,748,864.80, 97,123,297.20 and 16,879,808.80

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Solution

The fourth proportional to 64,748,864.80, 97,123,297.20 and 16,879,808.80 is: 25,319,713.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,748,864.80 : 97,123,297.20 = 16,879,808.80 : x
  2. Step 2: Convert to fraction form
    64,748,864.80/97,123,297.20 = 16,879,808.80/x
  3. Step 3: Cross multiply
    64,748,864.80x = 97,123,297.20 × 16,879,808.80
  4. Step 4: Simplify right side
    64,748,864.80x = 1,639,422,686,761,575.50
  5. Step 5: Solve for x
    x = 1,639,422,686,761,575.50/64,748,864.80
  6. Step 6: Final answer
    x = 25,319,713.20

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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.