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Finding the Fourth Proportional to 103,674.62, 143,075.53 and 58,355.53

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Solution

The fourth proportional to 103,674.62, 143,075.53 and 58,355.53 is: 80,533.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,674.62 : 143,075.53 = 58,355.53 : x
  2. Step 2: Convert to fraction form
    103,674.62/143,075.53 = 58,355.53/x
  3. Step 3: Cross multiply
    103,674.62x = 143,075.53 × 58,355.53
  4. Step 4: Simplify right side
    103,674.62x = 8,349,248,383.18
  5. Step 5: Solve for x
    x = 8,349,248,383.18/103,674.62
  6. Step 6: Final answer
    x = 80,533.19

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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.