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Finding the Fourth Proportional to 74,501.07, 102,811.47 and 40,967.07

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Solution

The fourth proportional to 74,501.07, 102,811.47 and 40,967.07 is: 56,534.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,501.07 : 102,811.47 = 40,967.07 : x
  2. Step 2: Convert to fraction form
    74,501.07/102,811.47 = 40,967.07/x
  3. Step 3: Cross multiply
    74,501.07x = 102,811.47 × 40,967.07
  4. Step 4: Simplify right side
    74,501.07x = 4,211,884,688.29
  5. Step 5: Solve for x
    x = 4,211,884,688.29/74,501.07
  6. Step 6: Final answer
    x = 56,534.55

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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.