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Finding the Fourth Proportional to 90,495.58, 124,841.90 and 56,482.06

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Solution

The fourth proportional to 90,495.58, 124,841.90 and 56,482.06 is: 77,919.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,495.58 : 124,841.90 = 56,482.06 : x
  2. Step 2: Convert to fraction form
    90,495.58/124,841.90 = 56,482.06/x
  3. Step 3: Cross multiply
    90,495.58x = 124,841.90 × 56,482.06
  4. Step 4: Simplify right side
    90,495.58x = 7,051,327,686.31
  5. Step 5: Solve for x
    x = 7,051,327,686.31/90,495.58
  6. Step 6: Final answer
    x = 77,919.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.