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Finding the Fourth Proportional to 152,564.94, 210,549.87 and 88,045.74

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Solution

The fourth proportional to 152,564.94, 210,549.87 and 88,045.74 is: 121,509.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,564.94 : 210,549.87 = 88,045.74 : x
  2. Step 2: Convert to fraction form
    152,564.94/210,549.87 = 88,045.74/x
  3. Step 3: Cross multiply
    152,564.94x = 210,549.87 × 88,045.74
  4. Step 4: Simplify right side
    152,564.94x = 18,538,019,111.05
  5. Step 5: Solve for x
    x = 18,538,019,111.05/152,564.94
  6. Step 6: Final answer
    x = 121,509.04

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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.