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Finding the Fourth Proportional to 99,088,850.40, 139,011,368.70 and 99,088,850.40

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Solution

The fourth proportional to 99,088,850.40, 139,011,368.70 and 99,088,850.40 is: 139,011,368.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,088,850.40 : 139,011,368.70 = 99,088,850.40 : x
  2. Step 2: Convert to fraction form
    99,088,850.40/139,011,368.70 = 99,088,850.40/x
  3. Step 3: Cross multiply
    99,088,850.40x = 139,011,368.70 × 99,088,850.40
  4. Step 4: Simplify right side
    99,088,850.40x = 13,774,476,717,013,542
  5. Step 5: Solve for x
    x = 13,774,476,717,013,542/99,088,850.40
  6. Step 6: Final answer
    x = 139,011,368.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.