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Finding the Fourth Proportional to 173,670.90, 260,506.35 and 103,686.90

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Solution

The fourth proportional to 173,670.90, 260,506.35 and 103,686.90 is: 155,530.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,670.90 : 260,506.35 = 103,686.90 : x
  2. Step 2: Convert to fraction form
    173,670.90/260,506.35 = 103,686.90/x
  3. Step 3: Cross multiply
    173,670.90x = 260,506.35 × 103,686.90
  4. Step 4: Simplify right side
    173,670.90x = 27,011,095,861.82
  5. Step 5: Solve for x
    x = 27,011,095,861.82/173,670.90
  6. Step 6: Final answer
    x = 155,530.35

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1.5x scale

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.