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Finding the Fourth Proportional to 253,985.06, 350,503.44 and 139,274.17

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Solution

The fourth proportional to 253,985.06, 350,503.44 and 139,274.17 is: 192,200.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,985.06 : 350,503.44 = 139,274.17 : x
  2. Step 2: Convert to fraction form
    253,985.06/350,503.44 = 139,274.17/x
  3. Step 3: Cross multiply
    253,985.06x = 350,503.44 × 139,274.17
  4. Step 4: Simplify right side
    253,985.06x = 48,816,075,688.14
  5. Step 5: Solve for x
    x = 48,816,075,688.14/253,985.06
  6. Step 6: Final answer
    x = 192,200.58

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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.