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Finding the Fourth Proportional to 52,473,460.80, 78,743,368.80 and 30,908,020.80

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Solution

The fourth proportional to 52,473,460.80, 78,743,368.80 and 30,908,020.80 is: 46,381,573.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,473,460.80 : 78,743,368.80 = 30,908,020.80 : x
  2. Step 2: Convert to fraction form
    52,473,460.80/78,743,368.80 = 30,908,020.80/x
  3. Step 3: Cross multiply
    52,473,460.80x = 78,743,368.80 × 30,908,020.80
  4. Step 4: Simplify right side
    52,473,460.80x = 2,433,801,680,732,471
  5. Step 5: Solve for x
    x = 2,433,801,680,732,471/52,473,460.80
  6. Step 6: Final answer
    x = 46,381,573.54

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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.