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Finding the Fourth Proportional to 32,978,156.64, 45,503,041.20 and 19,039,270.20

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Solution

The fourth proportional to 32,978,156.64, 45,503,041.20 and 19,039,270.20 is: 26,270,258.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,978,156.64 : 45,503,041.20 = 19,039,270.20 : x
  2. Step 2: Convert to fraction form
    32,978,156.64/45,503,041.20 = 19,039,270.20/x
  3. Step 3: Cross multiply
    32,978,156.64x = 45,503,041.20 × 19,039,270.20
  4. Step 4: Simplify right side
    32,978,156.64x = 866,344,696,328,532.25
  5. Step 5: Solve for x
    x = 866,344,696,328,532.25/32,978,156.64
  6. Step 6: Final answer
    x = 26,270,258.40

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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.