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Finding the Fourth Proportional to 14,465,978.20, 21,683,876.16 and 4,878,060.04

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Solution

The fourth proportional to 14,465,978.20, 21,683,876.16 and 4,878,060.04 is: 7,312,001.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,465,978.20 : 21,683,876.16 = 4,878,060.04 : x
  2. Step 2: Convert to fraction form
    14,465,978.20/21,683,876.16 = 4,878,060.04/x
  3. Step 3: Cross multiply
    14,465,978.20x = 21,683,876.16 × 4,878,060.04
  4. Step 4: Simplify right side
    14,465,978.20x = 105,775,249,808,404.64
  5. Step 5: Solve for x
    x = 105,775,249,808,404.64/14,465,978.20
  6. Step 6: Final answer
    x = 7,312,001.19

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.