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Finding the Fourth Proportional to 60,491.36, 83,541.84 and 53,894.72

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Solution

The fourth proportional to 60,491.36, 83,541.84 and 53,894.72 is: 74,431.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,491.36 : 83,541.84 = 53,894.72 : x
  2. Step 2: Convert to fraction form
    60,491.36/83,541.84 = 53,894.72/x
  3. Step 3: Cross multiply
    60,491.36x = 83,541.84 × 53,894.72
  4. Step 4: Simplify right side
    60,491.36x = 4,502,464,075.08
  5. Step 5: Solve for x
    x = 4,502,464,075.08/60,491.36
  6. Step 6: Final answer
    x = 74,431.52

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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.