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Finding the Fourth Proportional to 152,703.92, 210,741.36 and 88,175.87

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Solution

The fourth proportional to 152,703.92, 210,741.36 and 88,175.87 is: 121,688.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,703.92 : 210,741.36 = 88,175.87 : x
  2. Step 2: Convert to fraction form
    152,703.92/210,741.36 = 88,175.87/x
  3. Step 3: Cross multiply
    152,703.92x = 210,741.36 × 88,175.87
  4. Step 4: Simplify right side
    152,703.92x = 18,582,301,709.28
  5. Step 5: Solve for x
    x = 18,582,301,709.28/152,703.92
  6. Step 6: Final answer
    x = 121,688.44

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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.