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Finding the Fourth Proportional to 171,353.76, 257,030.64 and 46,713.12

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Solution

The fourth proportional to 171,353.76, 257,030.64 and 46,713.12 is: 70,069.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,353.76 : 257,030.64 = 46,713.12 : x
  2. Step 2: Convert to fraction form
    171,353.76/257,030.64 = 46,713.12/x
  3. Step 3: Cross multiply
    171,353.76x = 257,030.64 × 46,713.12
  4. Step 4: Simplify right side
    171,353.76x = 12,006,703,130.00
  5. Step 5: Solve for x
    x = 12,006,703,130.00/171,353.76
  6. Step 6: Final answer
    x = 70,069.68

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.