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Finding the Fourth Proportional to 118,038.60, 162,893.27 and 64,323.60

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Solution

The fourth proportional to 118,038.60, 162,893.27 and 64,323.60 is: 88,766.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,038.60 : 162,893.27 = 64,323.60 : x
  2. Step 2: Convert to fraction form
    118,038.60/162,893.27 = 64,323.60/x
  3. Step 3: Cross multiply
    118,038.60x = 162,893.27 × 64,323.60
  4. Step 4: Simplify right side
    118,038.60x = 10,477,881,542.17
  5. Step 5: Solve for x
    x = 10,477,881,542.17/118,038.60
  6. Step 6: Final answer
    x = 88,766.57

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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.