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Finding the Fourth Proportional to 53,885,812.40, 80,828,718.60 and 53,885,812.40

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Solution

The fourth proportional to 53,885,812.40, 80,828,718.60 and 53,885,812.40 is: 80,828,718.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,885,812.40 : 80,828,718.60 = 53,885,812.40 : x
  2. Step 2: Convert to fraction form
    53,885,812.40/80,828,718.60 = 53,885,812.40/x
  3. Step 3: Cross multiply
    53,885,812.40x = 80,828,718.60 × 53,885,812.40
  4. Step 4: Simplify right side
    53,885,812.40x = 4,355,521,167,011,990
  5. Step 5: Solve for x
    x = 4,355,521,167,011,990/53,885,812.40
  6. Step 6: Final answer
    x = 80,828,718.60

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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.