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Finding the Fourth Proportional to 74,573.96, 102,888.86 and 42,303.24

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Solution

The fourth proportional to 74,573.96, 102,888.86 and 42,303.24 is: 58,365.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,573.96 : 102,888.86 = 42,303.24 : x
  2. Step 2: Convert to fraction form
    74,573.96/102,888.86 = 42,303.24/x
  3. Step 3: Cross multiply
    74,573.96x = 102,888.86 × 42,303.24
  4. Step 4: Simplify right side
    74,573.96x = 4,352,531,926.39
  5. Step 5: Solve for x
    x = 4,352,531,926.39/74,573.96
  6. Step 6: Final answer
    x = 58,365.31

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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.