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Finding the Fourth Proportional to 88,179.79, 121,688.99 and 47,893.93

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Solution

The fourth proportional to 88,179.79, 121,688.99 and 47,893.93 is: 66,094.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,179.79 : 121,688.99 = 47,893.93 : x
  2. Step 2: Convert to fraction form
    88,179.79/121,688.99 = 47,893.93/x
  3. Step 3: Cross multiply
    88,179.79x = 121,688.99 × 47,893.93
  4. Step 4: Simplify right side
    88,179.79x = 5,828,163,968.83
  5. Step 5: Solve for x
    x = 5,828,163,968.83/88,179.79
  6. Step 6: Final answer
    x = 66,094.10

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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.