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Finding the Fourth Proportional to 118,151.65, 163,051.37 and 64,438.63

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Solution

The fourth proportional to 118,151.65, 163,051.37 and 64,438.63 is: 88,926.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,151.65 : 163,051.37 = 64,438.63 : x
  2. Step 2: Convert to fraction form
    118,151.65/163,051.37 = 64,438.63/x
  3. Step 3: Cross multiply
    118,151.65x = 163,051.37 × 64,438.63
  4. Step 4: Simplify right side
    118,151.65x = 10,506,806,902.42
  5. Step 5: Solve for x
    x = 10,506,806,902.42/118,151.65
  6. Step 6: Final answer
    x = 88,926.45

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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.