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Finding the Fourth Proportional to 101,952,001.90, 152,928,002.85 and 90,804,328.30

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Solution

The fourth proportional to 101,952,001.90, 152,928,002.85 and 90,804,328.30 is: 136,206,492.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,952,001.90 : 152,928,002.85 = 90,804,328.30 : x
  2. Step 2: Convert to fraction form
    101,952,001.90/152,928,002.85 = 90,804,328.30/x
  3. Step 3: Cross multiply
    101,952,001.90x = 152,928,002.85 × 90,804,328.30
  4. Step 4: Simplify right side
    101,952,001.90x = 13,886,524,577,054,734
  5. Step 5: Solve for x
    x = 13,886,524,577,054,734/101,952,001.90
  6. Step 6: Final answer
    x = 136,206,492.45

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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.