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Finding the Fourth Proportional to 97,017.40, 145,526.10 and 65,913.40

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Solution

The fourth proportional to 97,017.40, 145,526.10 and 65,913.40 is: 98,870.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,017.40 : 145,526.10 = 65,913.40 : x
  2. Step 2: Convert to fraction form
    97,017.40/145,526.10 = 65,913.40/x
  3. Step 3: Cross multiply
    97,017.40x = 145,526.10 × 65,913.40
  4. Step 4: Simplify right side
    97,017.40x = 9,592,120,039.74
  5. Step 5: Solve for x
    x = 9,592,120,039.74/97,017.40
  6. Step 6: Final answer
    x = 98,870.10

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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.