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Finding the Fourth Proportional to 70,574,634.40, 105,813,400.20 and 35,964,047.20

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Solution

The fourth proportional to 70,574,634.40, 105,813,400.20 and 35,964,047.20 is: 53,921,329.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,574,634.40 : 105,813,400.20 = 35,964,047.20 : x
  2. Step 2: Convert to fraction form
    70,574,634.40/105,813,400.20 = 35,964,047.20/x
  3. Step 3: Cross multiply
    70,574,634.40x = 105,813,400.20 × 35,964,047.20
  4. Step 4: Simplify right side
    70,574,634.40x = 3,805,478,119,185,290
  5. Step 5: Solve for x
    x = 3,805,478,119,185,290/70,574,634.40
  6. Step 6: Final answer
    x = 53,921,329.55

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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.