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Finding the Fourth Proportional to 112,047.96, 154,625.40 and 61,746.96

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Solution

The fourth proportional to 112,047.96, 154,625.40 and 61,746.96 is: 85,210.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,047.96 : 154,625.40 = 61,746.96 : x
  2. Step 2: Convert to fraction form
    112,047.96/154,625.40 = 61,746.96/x
  3. Step 3: Cross multiply
    112,047.96x = 154,625.40 × 61,746.96
  4. Step 4: Simplify right side
    112,047.96x = 9,547,648,388.78
  5. Step 5: Solve for x
    x = 9,547,648,388.78/112,047.96
  6. Step 6: Final answer
    x = 85,210.37

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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.