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Finding the Fourth Proportional to 67,862,210.80, 101,788,650.60 and 21,803,407.60

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Solution

The fourth proportional to 67,862,210.80, 101,788,650.60 and 21,803,407.60 is: 32,703,612.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,862,210.80 : 101,788,650.60 = 21,803,407.60 : x
  2. Step 2: Convert to fraction form
    67,862,210.80/101,788,650.60 = 21,803,407.60/x
  3. Step 3: Cross multiply
    67,862,210.80x = 101,788,650.60 × 21,803,407.60
  4. Step 4: Simplify right side
    67,862,210.80x = 2,219,339,438,085,784.50
  5. Step 5: Solve for x
    x = 2,219,339,438,085,784.50/67,862,210.80
  6. Step 6: Final answer
    x = 32,703,612.39

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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.