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Finding the Fourth Proportional to 106,075.48, 146,347.73 and 65,774.74

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Solution

The fourth proportional to 106,075.48, 146,347.73 and 65,774.74 is: 90,746.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,075.48 : 146,347.73 = 65,774.74 : x
  2. Step 2: Convert to fraction form
    106,075.48/146,347.73 = 65,774.74/x
  3. Step 3: Cross multiply
    106,075.48x = 146,347.73 × 65,774.74
  4. Step 4: Simplify right side
    106,075.48x = 9,625,983,890.34
  5. Step 5: Solve for x
    x = 9,625,983,890.34/106,075.48
  6. Step 6: Final answer
    x = 90,746.55

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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.