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Finding the Fourth Proportional to 49,909,742.40, 70,024,804.80 and 49,909,742.40

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Solution

The fourth proportional to 49,909,742.40, 70,024,804.80 and 49,909,742.40 is: 70,024,804.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,909,742.40 : 70,024,804.80 = 49,909,742.40 : x
  2. Step 2: Convert to fraction form
    49,909,742.40/70,024,804.80 = 49,909,742.40/x
  3. Step 3: Cross multiply
    49,909,742.40x = 70,024,804.80 × 49,909,742.40
  4. Step 4: Simplify right side
    49,909,742.40x = 3,494,919,969,178,283.50
  5. Step 5: Solve for x
    x = 3,494,919,969,178,283.50/49,909,742.40
  6. Step 6: Final answer
    x = 70,024,804.80

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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.