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Finding the Fourth Proportional to 90,870,482.80, 136,306,501.80 and 30,286,208.80

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Solution

The fourth proportional to 90,870,482.80, 136,306,501.80 and 30,286,208.80 is: 45,429,572.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,870,482.80 : 136,306,501.80 = 30,286,208.80 : x
  2. Step 2: Convert to fraction form
    90,870,482.80/136,306,501.80 = 30,286,208.80/x
  3. Step 3: Cross multiply
    90,870,482.80x = 136,306,501.80 × 30,286,208.80
  4. Step 4: Simplify right side
    90,870,482.80x = 4,128,207,174,312,376.50
  5. Step 5: Solve for x
    x = 4,128,207,174,312,376.50/90,870,482.80
  6. Step 6: Final answer
    x = 45,429,572.37

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.