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Finding the Fourth Proportional to 74,838.58, 112,113.88 and 46,769.64

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Solution

The fourth proportional to 74,838.58, 112,113.88 and 46,769.64 is: 70,064.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,838.58 : 112,113.88 = 46,769.64 : x
  2. Step 2: Convert to fraction form
    74,838.58/112,113.88 = 46,769.64/x
  3. Step 3: Cross multiply
    74,838.58x = 112,113.88 × 46,769.64
  4. Step 4: Simplify right side
    74,838.58x = 5,243,525,806.60
  5. Step 5: Solve for x
    x = 5,243,525,806.60/74,838.58
  6. Step 6: Final answer
    x = 70,064.47

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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.