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Finding the Fourth Proportional to 139,896,533.70, 209,844,800.55 and 110,671,215.30

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Solution

The fourth proportional to 139,896,533.70, 209,844,800.55 and 110,671,215.30 is: 166,006,822.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,896,533.70 : 209,844,800.55 = 110,671,215.30 : x
  2. Step 2: Convert to fraction form
    139,896,533.70/209,844,800.55 = 110,671,215.30/x
  3. Step 3: Cross multiply
    139,896,533.70x = 209,844,800.55 × 110,671,215.30
  4. Step 4: Simplify right side
    139,896,533.70x = 23,223,779,101,254,608
  5. Step 5: Solve for x
    x = 23,223,779,101,254,608/139,896,533.70
  6. Step 6: Final answer
    x = 166,006,822.95

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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.