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Finding the Fourth Proportional to 79,971, 110,369.70 and 46,437

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Solution

The fourth proportional to 79,971, 110,369.70 and 46,437 is: 64,088.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,971 : 110,369.70 = 46,437 : x
  2. Step 2: Convert to fraction form
    79,971/110,369.70 = 46,437/x
  3. Step 3: Cross multiply
    79,971x = 110,369.70 × 46,437
  4. Step 4: Simplify right side
    79,971x = 5,125,237,758.90
  5. Step 5: Solve for x
    x = 5,125,237,758.90/79,971
  6. Step 6: Final answer
    x = 64,088.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.