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Finding the Fourth Proportional to 56,894,518.40, 85,215,806.40 and 46,816,822.40

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Solution

The fourth proportional to 56,894,518.40, 85,215,806.40 and 46,816,822.40 is: 70,121,575.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,894,518.40 : 85,215,806.40 = 46,816,822.40 : x
  2. Step 2: Convert to fraction form
    56,894,518.40/85,215,806.40 = 46,816,822.40/x
  3. Step 3: Cross multiply
    56,894,518.40x = 85,215,806.40 × 46,816,822.40
  4. Step 4: Simplify right side
    56,894,518.40x = 3,989,533,273,901,583.50
  5. Step 5: Solve for x
    x = 3,989,533,273,901,583.50/56,894,518.40
  6. Step 6: Final answer
    x = 70,121,575.61

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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.