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Finding the Fourth Proportional to 209,952,401.60, 314,928,602.40 and 64,384,806.80

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Solution

The fourth proportional to 209,952,401.60, 314,928,602.40 and 64,384,806.80 is: 96,577,210.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,952,401.60 : 314,928,602.40 = 64,384,806.80 : x
  2. Step 2: Convert to fraction form
    209,952,401.60/314,928,602.40 = 64,384,806.80/x
  3. Step 3: Cross multiply
    209,952,401.60x = 314,928,602.40 × 64,384,806.80
  4. Step 4: Simplify right side
    209,952,401.60x = 20,276,617,221,318,012
  5. Step 5: Solve for x
    x = 20,276,617,221,318,012/209,952,401.60
  6. Step 6: Final answer
    x = 96,577,210.20

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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.