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Finding the Fourth Proportional to 118,365.86, 163,302.45 and 69,957.63

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Solution

The fourth proportional to 118,365.86, 163,302.45 and 69,957.63 is: 96,516.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,365.86 : 163,302.45 = 69,957.63 : x
  2. Step 2: Convert to fraction form
    118,365.86/163,302.45 = 69,957.63/x
  3. Step 3: Cross multiply
    118,365.86x = 163,302.45 × 69,957.63
  4. Step 4: Simplify right side
    118,365.86x = 11,424,252,112.85
  5. Step 5: Solve for x
    x = 11,424,252,112.85/118,365.86
  6. Step 6: Final answer
    x = 96,516.44

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1.5x scale

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.