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Finding the Fourth Proportional to 73,281,611.20, 102,459,886.40 and 73,281,611.20

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Solution

The fourth proportional to 73,281,611.20, 102,459,886.40 and 73,281,611.20 is: 102,459,886.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,281,611.20 : 102,459,886.40 = 73,281,611.20 : x
  2. Step 2: Convert to fraction form
    73,281,611.20/102,459,886.40 = 73,281,611.20/x
  3. Step 3: Cross multiply
    73,281,611.20x = 102,459,886.40 × 73,281,611.20
  4. Step 4: Simplify right side
    73,281,611.20x = 7,508,425,558,760,968
  5. Step 5: Solve for x
    x = 7,508,425,558,760,968/73,281,611.20
  6. Step 6: Final answer
    x = 102,459,886.40

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.