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Finding the Fourth Proportional to 77,431, 116,068.07 and 52,473.58

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Solution

The fourth proportional to 77,431, 116,068.07 and 52,473.58 is: 78,657.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,431 : 116,068.07 = 52,473.58 : x
  2. Step 2: Convert to fraction form
    77,431/116,068.07 = 52,473.58/x
  3. Step 3: Cross multiply
    77,431x = 116,068.07 × 52,473.58
  4. Step 4: Simplify right side
    77,431x = 6,090,506,894.22
  5. Step 5: Solve for x
    x = 6,090,506,894.22/77,431
  6. Step 6: Final answer
    x = 78,657.22

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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.