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Finding the Fourth Proportional to 86,316.75, 129,314.73 and 46,907.01

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Solution

The fourth proportional to 86,316.75, 129,314.73 and 46,907.01 is: 70,273.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,316.75 : 129,314.73 = 46,907.01 : x
  2. Step 2: Convert to fraction form
    86,316.75/129,314.73 = 46,907.01/x
  3. Step 3: Cross multiply
    86,316.75x = 129,314.73 × 46,907.01
  4. Step 4: Simplify right side
    86,316.75x = 6,065,767,333.26
  5. Step 5: Solve for x
    x = 6,065,767,333.26/86,316.75
  6. Step 6: Final answer
    x = 70,273.35

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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.