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Finding the Fourth Proportional to 185,896,803.60, 278,845,205.40 and 111,920,216.40

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Solution

The fourth proportional to 185,896,803.60, 278,845,205.40 and 111,920,216.40 is: 167,880,324.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,896,803.60 : 278,845,205.40 = 111,920,216.40 : x
  2. Step 2: Convert to fraction form
    185,896,803.60/278,845,205.40 = 111,920,216.40/x
  3. Step 3: Cross multiply
    185,896,803.60x = 278,845,205.40 × 111,920,216.40
  4. Step 4: Simplify right side
    185,896,803.60x = 31,208,415,730,470,448
  5. Step 5: Solve for x
    x = 31,208,415,730,470,448/185,896,803.60
  6. Step 6: Final answer
    x = 167,880,324.60

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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.