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Finding the Fourth Proportional to 59,714,971.20, 89,572,456.80 and 19,354,420.80

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Solution

The fourth proportional to 59,714,971.20, 89,572,456.80 and 19,354,420.80 is: 29,031,631.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,714,971.20 : 89,572,456.80 = 19,354,420.80 : x
  2. Step 2: Convert to fraction form
    59,714,971.20/89,572,456.80 = 19,354,420.80/x
  3. Step 3: Cross multiply
    59,714,971.20x = 89,572,456.80 × 19,354,420.80
  4. Step 4: Simplify right side
    59,714,971.20x = 1,733,623,020,997,021.50
  5. Step 5: Solve for x
    x = 1,733,623,020,997,021.50/59,714,971.20
  6. Step 6: Final answer
    x = 29,031,631.20

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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.