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Finding the Fourth Proportional to 70,859.61, 97,812.77 and 46,994.31

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Solution

The fourth proportional to 70,859.61, 97,812.77 and 46,994.31 is: 64,869.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,859.61 : 97,812.77 = 46,994.31 : x
  2. Step 2: Convert to fraction form
    70,859.61/97,812.77 = 46,994.31/x
  3. Step 3: Cross multiply
    70,859.61x = 97,812.77 × 46,994.31
  4. Step 4: Simplify right side
    70,859.61x = 4,596,643,400.37
  5. Step 5: Solve for x
    x = 4,596,643,400.37/70,859.61
  6. Step 6: Final answer
    x = 64,869.72

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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.