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Finding the Fourth Proportional to 163,555,953.60, 245,125,533.60 and 86,915,697.60

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Solution

The fourth proportional to 163,555,953.60, 245,125,533.60 and 86,915,697.60 is: 130,262,801.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,555,953.60 : 245,125,533.60 = 86,915,697.60 : x
  2. Step 2: Convert to fraction form
    163,555,953.60/245,125,533.60 = 86,915,697.60/x
  3. Step 3: Cross multiply
    163,555,953.60x = 245,125,533.60 × 86,915,697.60
  4. Step 4: Simplify right side
    163,555,953.60x = 21,305,256,752,416,236
  5. Step 5: Solve for x
    x = 21,305,256,752,416,236/163,555,953.60
  6. Step 6: Final answer
    x = 130,262,801.71

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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.