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Finding the Fourth Proportional to 53,397,853.70, 74,927,056.30 and 53,397,853.70

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Solution

The fourth proportional to 53,397,853.70, 74,927,056.30 and 53,397,853.70 is: 74,927,056.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,397,853.70 : 74,927,056.30 = 53,397,853.70 : x
  2. Step 2: Convert to fraction form
    53,397,853.70/74,927,056.30 = 53,397,853.70/x
  3. Step 3: Cross multiply
    53,397,853.70x = 74,927,056.30 × 53,397,853.70
  4. Step 4: Simplify right side
    53,397,853.70x = 4,000,943,990,479,063.50
  5. Step 5: Solve for x
    x = 4,000,943,990,479,063.50/53,397,853.70
  6. Step 6: Final answer
    x = 74,927,056.30

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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.