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Finding the Fourth Proportional to 164,390.40, 226,870.76 and 92,776.68

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Solution

The fourth proportional to 164,390.40, 226,870.76 and 92,776.68 is: 128,038.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,390.40 : 226,870.76 = 92,776.68 : x
  2. Step 2: Convert to fraction form
    164,390.40/226,870.76 = 92,776.68/x
  3. Step 3: Cross multiply
    164,390.40x = 226,870.76 × 92,776.68
  4. Step 4: Simplify right side
    164,390.40x = 21,048,315,901.88
  5. Step 5: Solve for x
    x = 21,048,315,901.88/164,390.40
  6. Step 6: Final answer
    x = 128,038.60

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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.