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Finding the Fourth Proportional to 10,181,779.80, 15,272,669.70 and 10,181,779.80

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Solution

The fourth proportional to 10,181,779.80, 15,272,669.70 and 10,181,779.80 is: 15,272,669.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,181,779.80 : 15,272,669.70 = 10,181,779.80 : x
  2. Step 2: Convert to fraction form
    10,181,779.80/15,272,669.70 = 10,181,779.80/x
  3. Step 3: Cross multiply
    10,181,779.80x = 15,272,669.70 × 10,181,779.80
  4. Step 4: Simplify right side
    10,181,779.80x = 155,502,959,843,532.06
  5. Step 5: Solve for x
    x = 155,502,959,843,532.06/10,181,779.80
  6. Step 6: Final answer
    x = 15,272,669.70

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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.