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Finding the Fourth Proportional to 43,712,999.70, 61,287,779.10 and 43,712,999.70

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Solution

The fourth proportional to 43,712,999.70, 61,287,779.10 and 43,712,999.70 is: 61,287,779.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,712,999.70 : 61,287,779.10 = 43,712,999.70 : x
  2. Step 2: Convert to fraction form
    43,712,999.70/61,287,779.10 = 43,712,999.70/x
  3. Step 3: Cross multiply
    43,712,999.70x = 61,287,779.10 × 43,712,999.70
  4. Step 4: Simplify right side
    43,712,999.70x = 2,679,072,669,411,966.50
  5. Step 5: Solve for x
    x = 2,679,072,669,411,966.50/43,712,999.70
  6. Step 6: Final answer
    x = 61,287,779.10

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.