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Finding the Fourth Proportional to 55,318,896.60, 82,978,344.90 and 23,402,045.40

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Solution

The fourth proportional to 55,318,896.60, 82,978,344.90 and 23,402,045.40 is: 35,103,068.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,318,896.60 : 82,978,344.90 = 23,402,045.40 : x
  2. Step 2: Convert to fraction form
    55,318,896.60/82,978,344.90 = 23,402,045.40/x
  3. Step 3: Cross multiply
    55,318,896.60x = 82,978,344.90 × 23,402,045.40
  4. Step 4: Simplify right side
    55,318,896.60x = 1,941,862,994,566,658.50
  5. Step 5: Solve for x
    x = 1,941,862,994,566,658.50/55,318,896.60
  6. Step 6: Final answer
    x = 35,103,068.10

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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.