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Finding the Fourth Proportional to 75,087,016.30, 105,424,153.70 and 75,087,016.30

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Solution

The fourth proportional to 75,087,016.30, 105,424,153.70 and 75,087,016.30 is: 105,424,153.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,087,016.30 : 105,424,153.70 = 75,087,016.30 : x
  2. Step 2: Convert to fraction form
    75,087,016.30/105,424,153.70 = 75,087,016.30/x
  3. Step 3: Cross multiply
    75,087,016.30x = 105,424,153.70 × 75,087,016.30
  4. Step 4: Simplify right side
    75,087,016.30x = 7,915,985,147,285,605
  5. Step 5: Solve for x
    x = 7,915,985,147,285,605/75,087,016.30
  6. Step 6: Final answer
    x = 105,424,153.70

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1.5x scale

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.