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Finding the Fourth Proportional to 98,334,946.80, 147,591,649.80 and 49,846,532.40

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Solution

The fourth proportional to 98,334,946.80, 147,591,649.80 and 49,846,532.40 is: 74,815,029.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,334,946.80 : 147,591,649.80 = 49,846,532.40 : x
  2. Step 2: Convert to fraction form
    98,334,946.80/147,591,649.80 = 49,846,532.40/x
  3. Step 3: Cross multiply
    98,334,946.80x = 147,591,649.80 × 49,846,532.40
  4. Step 4: Simplify right side
    98,334,946.80x = 7,356,931,953,725,154
  5. Step 5: Solve for x
    x = 7,356,931,953,725,154/98,334,946.80
  6. Step 6: Final answer
    x = 74,815,029.58

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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.