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Finding the Fourth Proportional to 85,857.54, 118,482.93 and 48,130.98

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Solution

The fourth proportional to 85,857.54, 118,482.93 and 48,130.98 is: 66,420.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,857.54 : 118,482.93 = 48,130.98 : x
  2. Step 2: Convert to fraction form
    85,857.54/118,482.93 = 48,130.98/x
  3. Step 3: Cross multiply
    85,857.54x = 118,482.93 × 48,130.98
  4. Step 4: Simplify right side
    85,857.54x = 5,702,699,534.17
  5. Step 5: Solve for x
    x = 5,702,699,534.17/85,857.54
  6. Step 6: Final answer
    x = 66,420.49

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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.