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Finding the Fourth Proportional to 88,152.68, 121,733.74 and 61,368.44

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Solution

The fourth proportional to 88,152.68, 121,733.74 and 61,368.44 is: 84,746.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,152.68 : 121,733.74 = 61,368.44 : x
  2. Step 2: Convert to fraction form
    88,152.68/121,733.74 = 61,368.44/x
  3. Step 3: Cross multiply
    88,152.68x = 121,733.74 × 61,368.44
  4. Step 4: Simplify right side
    88,152.68x = 7,470,608,842.01
  5. Step 5: Solve for x
    x = 7,470,608,842.01/88,152.68
  6. Step 6: Final answer
    x = 84,746.25

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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.