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Finding the Fourth Proportional to 67,433,428.80, 100,851,544.80 and 56,683,886.40

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Solution

The fourth proportional to 67,433,428.80, 100,851,544.80 and 56,683,886.40 is: 84,774,830.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,433,428.80 : 100,851,544.80 = 56,683,886.40 : x
  2. Step 2: Convert to fraction form
    67,433,428.80/100,851,544.80 = 56,683,886.40/x
  3. Step 3: Cross multiply
    67,433,428.80x = 100,851,544.80 × 56,683,886.40
  4. Step 4: Simplify right side
    67,433,428.80x = 5,716,657,508,707,710
  5. Step 5: Solve for x
    x = 5,716,657,508,707,710/67,433,428.80
  6. Step 6: Final answer
    x = 84,774,830.68

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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.